From the changelog:
* Improvement: use the wordpress defined charset and collation for the DB tables, this will benefit those with weird character sets. Watch out and take a backup before doing this!
* Bugfix: Changing the registration (number of reserved places) of a user for an event works again
* Bugfix: the showperiod option to the [events_list] resulted in non-translated names for month/day. Has been fixed.
* Bugfix: the special events page no longer changes the menu title
* Feature: #_ATTENDEES shortcode available, will return a html-list of names attending the event, customizable by CSS
* Feature: when editing an event, you can now make it recurrent